from haystack import indexes

from .models import SKU

class SKUIndex(indexes.SearchIndex, indexes.Indexable):
    '''
    SKU索引数据模型类
    '''

    text = indexes.CharField(document=True, use_template=True)

    def get_model(self):
        '''
        返回建立索引的模型类
        :return:
        '''
        return SKU

    def index_queryset(self, using=None):
        '''
        返回要建立所以的数据查询集
        :param using:
        :return:
        '''
        return self.get_model().objects.filter(is_launched=True)